javascript - 如何使用 javascript 遍历这个 json 数组

Question

我尝试循环这个 json 但它不起作用。我想循环遍历商店但它不起作用

JSON:

{
    "type": "shops",
    "shops": {
        "1": {
            "id": "1",
            "name": "abcd",
            "open_time": "9AM",
            "closed_time": "9PM"
        },
        "2": {
            "id": "1",
            "name": "efgh",
            "open_time": "9AM",
            "closed_time": "9PM"
        }
    }
}

脚本

$.getJSON( "simple.json", function( json ) {
  console.log( "JSON Data: " + (json) );
    for(var i = 0; i < json.shops.length; i++){

        console.log(json[i].shops.name);

    }
 });

这没有给我任何结果

Answer 1

json.shops 不是一个数组，它是一个对象。您可以使用 for..in 循环或 $.each

使用 $.each

$.getJSON( "simple.json", function( json ) {
  console.log( "JSON Data: " + (json) );
    $.each(json.shops, function(key, shop){
      //key will be "1", "2"...n
        console.log(shop.name, shop.id);
    });
 });

使用 for..in

     for(var shop in json.shops){
        //shop will be "1", "2"...n
        if (json.shops.hasOwnProperty(shop))
            console.log(json.shops[shop].name);
     }